Cable take-up and pay-off device

Abstract

The invention discloses a cable take-up and pay-off device, the cable take-up and pay-off device comprises a first rolling shaft, a second rolling shaft and a conduction device, and a section of a cable is wound on the first rolling shaft; a second cable section is wound on the second rolling shaft; the conduction device is arranged between the first rolling shaft and the second rolling shaft, the first cable section and the second cable section are conducted through the conduction device, multiple strands of cable cores are arranged in the first cable section and the second cable section, the multiple strands of cable cores are connected and conducted correspondingly through the conduction device in a one-to-one correspondence mode, and therefore one cable is formed; in the take-up or pay-off process of the cable take-up and pay-off device, the first cable section and the second cable section are always conducted, the first rolling shaft and the second rolling shaft pay off at the same time, an operator can conveniently adjust the length of the cable at any time according to requirements, operation is more convenient, and abrasion caused by the fact that the cable is placed on the ground and rubs with hard objects on the ground is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of electric power equipment, and in particular to a cable retracting and releasing device. Background Art

[0002] During the tower assembly process, electrical equipment is required, and the electrical equipment needs to be connected with power cables and control cables. In the actual construction process, the length of the cable changes with the height of the tower. As the tower continues to rise during the assembly process, the cable needs to be able to adjust the length freely during the construction process. However, the existing cable retracting device only has one rolling shaft for retracting and releasing the cable, so that during construction, the cable can only be completely pulled out from the rolling shaft, one end of the cable is fixed on the tower, and the other end of the cable is fixed on the generator (or operating box). The cable between the two ends can only be placed on the ground. During the construction process, the cable will be dragged and easily rubbed against hard objects on the ground, causing cable wear, which brings great inconvenience to the construction and also buries hidden dangers for subsequent construction. Therefore, it is very necessary to provide a cable retracting and releasing device to solve the problem of inconvenient cable length adjustment during construction. Summary of the invention

[0003] One purpose of the present application is to provide a cable retracting and unreeling device to solve the problem of inconvenience in adjusting the length of the cable during laying.

[0004] In order to achieve the above objectives, the technical solution adopted in the present application is: the cable retracting and unreeling device includes: a first rolling shaft, a second rolling shaft and a conducting device, a first section of cable is wound on the first rolling shaft; a second section of cable is wound on the second rolling shaft; the conducting device is arranged between the first rolling shaft and the second rolling shaft, and the first section of cable and the second section of cable are conducted through the conducting device.

[0005] As a preferred embodiment, the conducting device comprises: a first electric slip ring, a second electric slip ring and a conducting member, wherein the first electric slip ring is fixed on a side of the first rolling shaft close to the conducting device, and the first electric slip ring is connected to one section of the cable; the second electric slip ring is fixed on a side of the second rolling shaft close to the conducting device, and the second electric slip ring is connected to the second section of the cable; the conducting member is arranged between the first electric slip ring and the second electric slip ring, and one side of the conducting member is in contact with the first electric slip ring, and the other side of the conducting member is in contact with the second electric slip ring.

[0006] As another preferred embodiment, the conductive member includes: conductive rings, which are arranged on both sides of the conductive member; wherein the first electric slip ring is provided with a first terminal, the second electric slip ring is provided with a second terminal, and the first terminal is connected to the second terminal through the conductive ring.

[0007] Further preferably, the conductive member further includes: an insulating ring, which is arranged between the conductive rings.

[0008] Further preferably, the height of the insulating ring is greater than the height of the conductive ring.

[0009] Further preferably, a first elastic member is provided between the first electric slip ring and the first terminal, and a second elastic member is provided between the second electric slip ring and the second terminal.

[0010] Further preferably, a plurality of first terminals are provided, the first terminals are arranged in sequence along the extension direction of the diameter of the first electric slip ring, and there are gaps between the first terminals; a plurality of second terminals are provided, the second terminals are arranged in sequence along the extension direction of the diameter of the second electric slip ring, and there are gaps between the second terminals.

[0011] Further preferably, there are a plurality of first terminals, the first electric slip ring has a first center, the first terminals are arranged around the first center, the distances between the first terminals and the first center are unequal, and an angle exists between the lines connecting the first terminals and the first center; there are a plurality of second terminals, the second electric slip ring has a second center, the second terminals are arranged around the second center, the distances between the second terminals and the second center are unequal, and an angle exists between the lines connecting the second terminals and the second center.

[0012] Further preferably, the first rolling shaft is provided with a first threading groove, and the end of one section of the cable passes through the first threading groove, so that the one section of the cable is connected to the first electric slip ring; the second rolling shaft is provided with a second threading groove, and the end of the second section of the cable passes through the second threading groove, so that the second section of the cable is connected to the second electric slip ring.

[0013] More preferably, the central axis of the first rolling shaft, the central axis of the second rolling shaft, and the central axis of the conducting device coincide with each other.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] A conducting device is arranged between the first rolling shaft and the second rolling shaft, so that the first cable section and the second cable section can be connected through the conducting device. Multiple cable cores are arranged inside the first cable section and the second cable section, and the multiple cable cores are connected one by one through the conducting device, so as to be conducted one by one, so that the first cable section and the second cable section can form one cable, thereby determining the availability of the cable, and in the process of the cable retracting and releasing device for reeling in or out the cable, the first cable section and the second cable section are always connected, and the first rolling shaft and the second rolling shaft release the cable at the same time, so that the operator can adjust the length of the cable at any time according to the demand, and the operation is more convenient, and it also avoids the cable being placed on the ground and rubbing against hard objects on the ground, causing wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the cable retracting and releasing device from a first perspective;

[0017] Figure 2 It is a structural schematic diagram of the cable retracting and releasing device from a second perspective;

[0018] Figure 3 is a schematic diagram of the structure of the conductive part;

[0019] Figure 4 It is a structural schematic diagram of the cable retracting and releasing device from a third perspective;

[0020] Figure 5 for Figure 4 Sectional view in the AA direction;

[0021] Figure 6 for Figure 5 Enlarged view of middle area B;

[0022] Figure 7 is a partial schematic diagram of a first electric slip ring from a first viewing angle;

[0023] Figure 8 is a partial schematic diagram of the first electric slip ring from a second viewing angle;

[0024] Fig. 9 is a second partial schematic diagram of the first electric slip ring;

[0025] Fig.10 This is a schematic diagram of the environment in which the cable retractable device is used.

[0026] In the figure: 100, cable retracting and unwinding device; 110, first rolling shaft; 111, first threading groove; 112, first unwinding groove; 120, second rolling shaft; 121, second threading groove; 130, conducting device; 131, first electric slip ring; 131a, first terminal; 131b, first elastic member; 132, second electric slip ring; 132a, second terminal; 132b, second elastic member; 133, conducting member; 133a, conductive ring; 133b, insulating ring; 140, bracket. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0031] The present application provides a cable retractable device 100, which includes: a first rolling shaft 110, a second rolling shaft 120 and a conducting device 130, wherein one section of cable is wound around the first rolling shaft 110, and two sections of cable are wound around the second rolling shaft 120, and the conducting device 130 is disposed between the first rolling shaft 110 and the second rolling shaft 120, and the one section of cable and the two sections of cable are conducted through the conducting device 130.

[0032] Specifically, as attached Figure 1 As shown, the present application provides a cable retractable device 100, which includes a first rolling shaft 110, a second rolling shaft 120, and a conducting device 130 arranged between the first rolling shaft 110 and the second rolling shaft 120. One section of cable is wound on the first rolling shaft 110, and two sections of cable are wound on the second rolling shaft 120. The end of the first section of cable is connected to the end of the second section of cable through the conducting device 130, so as to determine the availability of the first section of cable and the second section of cable. In the process of reeling in or releasing the cable retractable device 100, the first section of cable is always connected to the second section of cable, and the first rolling shaft 110 and the second rolling shaft 120 release the cable at the same time, so that the operator can adjust the length of the cable at any time according to the needs, which is more convenient to operate and avoids the cable being placed on the ground and rubbing against hard objects on the ground, causing wear.

[0033] As a supplementary explanation, both the first and second cable sections are provided with multiple cable cores, and the multiple cable cores inside the first cable section and the multiple cable cores inside the second cable section are connected one-to-one through the conducting device 130, thereby being conducted one-to-one, so that the first cable section and the second cable section can form one cable.

[0034] Preferably, a cable retracting and unreeling device 100 provided in the present application can be provided in plurality, and the first rolling shaft 110 and the second rolling shaft 120 are only for illustrating the technical solution of the present application, and do not limit the number of rolling shafts. At the same time, the first rolling shaft 110 and the second rolling shaft 120 can be rolling shafts of the same size or of different sizes, which is not limited here.

[0035] Supplementary instructions, as attached Fig.10 As shown, the cable retractable device 100 is suitable for the construction environment of tower assembly. During the assembly process, the height of the tower continues to rise, and the first rolling shaft 110 and the second rolling shaft 120 can release the cable at the same time. The length of the cable changes as the tower rises, so that the operator can adjust the length of the cable according to actual needs. At the same time, it also avoids placing the first and second cable sections on the ground, preventing the cable from contacting hard objects on the ground, thereby avoiding cable wear.

[0036] For example, the conducting device 130 includes: a first electric slip ring 131, a second electric slip ring 132 and a conducting member 133, wherein the first electric slip ring 131 is fixed on a side of the first rolling shaft 110 close to the conducting device 130, and the first electric slip ring 131 is connected to one section of the cable; the second electric slip ring 132 is fixed on a side of the second rolling shaft 120 close to the conducting device 130, and the second electric slip ring 132 is connected to the second section of the cable; the conducting member 133 is arranged between the first electric slip ring 131 and the second electric slip ring 132, and one side of the conducting member 133 is in contact with the first electric slip ring 131, and the other side of the conducting member 133 is in contact with the second electric slip ring 132.

[0037] For example, see the attached Figure 5 and attached Figure 6 As shown, the conducting device 130 includes a first electric slip ring 131 and a second electric slip ring 132, wherein, when the cable reeling and unreeling device 100 is in the process of holding or unreeling the cable, the first rolling shaft 110 and the second rolling shaft 120 rotate around their own axes, thereby completing the reeling and unreeling. Therefore, the first cable section and the second cable section are respectively connected to the first electric slip ring 131 and the second electric slip ring 132, so as to avoid the first cable section and the second cable section affecting the rolling of the first rolling shaft 110 and the second rolling shaft 120, so that the reeling and unreeling of the cable reeling and unreeling device 100 is smoother.

[0038] Specifically, the conductive member 133 includes: a conductive ring 133a, which is arranged on both sides of the conductive member 133; wherein the first electric slip ring 131 is provided with a first terminal 131a, and the second electric slip ring 132 is provided with a second terminal 132a, and the first terminal 131a and the second terminal 132a are connected through the conductive ring 133a.

[0039] Specifically, as attached Figure 3 As shown, the conductive member 133 is provided with a conductive ring 133a, the conductive ring 133a is laid on the surface of the conductive member 133, and the conductive member 133 and the conductive ring 133a are arranged cocentrically; Figure 6 As shown, the first terminal 131a extends into the conductive member 133 and contacts the conductive ring 133a, so that the first section of the cable is conductive to the conductive member 133, and the second terminal 132a contacts the conductive ring 133a, so that the second section of the cable is conductive to the conductive member 133, thereby connecting the first section of the cable to the second section of the cable. The structure of the conductive device 130 is relatively simple and the assembly is relatively convenient.

[0040] In addition, during the process of winding or releasing the cable, when the rolling speeds of the first rolling shaft 110 and the second rolling shaft 120 are different, it will not affect the conduction between the first cable section and the second cable section, making the cable winding and releasing device 100 more practical.

[0041] Specifically, the conductive member 133 further includes an insulating ring 133 b , and the insulating ring 133 b is disposed between the conductive rings 133 a .

[0042] Specifically, as attached Figure 3 As shown, the insulating ring 133b is arranged between the conductive rings 133a, wherein the cable is generally a multi-core cable and a single-core cable. When the first and second cable sections are multi-core cables, each core inside the multi-core cable needs to be connected to the conductive ring 133a. Therefore, the insulating ring 133b is arranged between the conductive rings 133a to prevent the conductive rings 133a from contacting and conducting with each other.

[0043] In addition, the number of conductive rings 133a is compatible with the number of wires inside the cable. For example, if the cable is a three-core cable, the number of conductive rings 133a can be greater than or equal to 3, and the number of conductive rings 133a is not limited here.

[0044] For example, the height of the insulating ring 133 b is greater than the height of the conductive ring 133 a .

[0045] For example, see the attached Figure 3As shown, the height of the insulating ring 133b is greater than the height of the conductive ring 133a. On the one hand, the insulating ring 133b can prevent the conductive rings 133a from contacting each other, thereby playing an isolation role; on the other hand, the insulating ring 133b can limit the separation of the first terminal 131a and the conductive ring 133a. Figure 6 As shown, the first terminal 131a extends into the insulating ring 133b, so as to be in contact and conduction with the conductive ring 133a; wherein, the first electric slip ring 131 is fixed on the first rolling shaft 110, and when the first rolling shaft 110 rotates around its own axis, the first electric slip ring 131 is driven to rotate, so that the first terminal 131a can always be in contact and conduction with the conductive ring 133a under the restriction of the insulating ring 133b, so as to achieve that the first cable section and the second cable section are always in conduction during the process of winding or releasing the line.

[0046] Preferably, the height of the conductive ring 133a is a, the height of the insulating ring 133b is b, a<b, and there is a mathematical relationship between a and b, b=Na, wherein N>1, for example, N is 1.3.

[0047] In addition, the second terminal 132a adopts the same conduction method as the first terminal 131a. The second terminal 132a extends into the insulating ring 133b, and then contacts and conducts with the conductive ring 133a. The insulating ring 133b can limit the second terminal 132a to prevent the second terminal 132a and the conductive ring 133a from separating from each other, thereby ensuring the reliability of conduction between the first cable section and the second cable section.

[0048] In addition, the number of insulating rings 133b matches the number of conductive rings 133a, which is not limited here.

[0049] For example, a first elastic member 131 b is disposed between the first electric slip ring 131 and the first terminal 131 a , and a second elastic member 132 b is disposed between the second electric slip ring 132 and the second terminal 132 a .

[0050] For example, see the attached Figure 6 As shown, a first elastic member 131b is provided between the first electric slip ring 131 and the first terminal 131a, and the first elastic member 131b can push the first terminal 131a and the conductive ring 133a to contact each other, so as to avoid the first terminal 131a and the conductive ring 133a being separated from each other during the process of winding or releasing the line, and the first elastic member 131b and the insulating ring 133b cooperate with each other to ensure the reliability of the contact and conduction between the first terminal 131a and the conductive ring 133a.

[0051] Furthermore, during the process of winding or releasing the line, the first rolling shaft 110 drives the first electric slip ring 131 to rotate, so that the first terminal 131a rotates. During the rotation process, there is friction between the end of the first terminal 131a that contacts the conductive ring 133a and the conductive ring 133a, which easily causes the first rolling shaft 110 to rotate less smoothly and emit abnormal noise. Therefore, a first elastic member 131b is provided between the first electric slip ring 131 and the first terminal 131a. During the rotation, the first elastic member 131b can be slightly deformed by force. While ensuring that the first terminal 131a and the conductive ring 133a are in contact and conductive, the friction between the two is reduced, the service life of the first terminal 131a is increased, and the first rolling shaft 110 rotates more smoothly, reducing the abnormal noise during the process of winding or releasing the line.

[0052] In addition, the second elastic member 132b and the first elastic member 131b play the same role, which is to reduce the friction between the second terminal 132a and the conductive ring 133a while ensuring contact and conduction between the second terminal 132a and the conductive ring 133a, thereby increasing the service life of the second terminal 132a, thereby ensuring that the second rolling shaft 120 rotates more smoothly and reduces abnormal noise.

[0053] Specifically, a plurality of first terminals 131a are provided, and the first terminals 131a are sequentially arranged along the extension direction of the diameter of the first electric slip ring 131, and there are gaps between the first terminals 131a; a plurality of second terminals 132a are provided, and the second terminals 132a are sequentially arranged along the extension direction of the diameter of the second electric slip ring 132, and there are gaps between the second terminals 132a.

[0054] Specifically, as attached Figure 7 As shown, a first electric slip ring 131 is provided with a plurality of first terminals 131a on one side close to the conducting device 130. Figure 8 As shown, the first terminals 131a are sequentially arranged along the extension direction of the diameter of the first electric slip ring 131 to avoid mutual contact between the first terminals 131a during the rotation of the first electric slip ring 131a, so that the conduction signal obtained by the staff is more accurate. There are gaps between the first terminals 131a, so that the insulating ring 133b can extend into the gap to isolate the first terminals 131a and prevent the first terminals 131a from contacting each other.

[0055] In addition, the number of first terminals 131a is related to the number of wires inside the cable, and the number of first terminals 131a is not limited here. For example, if the cable is a three-core cable, the number of first terminals 131a can be greater than or equal to 3.

[0056] In addition, the second electric slip ring 132 is provided with a plurality of second terminals 132a, and the arrangement of the second terminals 132a is the same as that of the first terminals 131a. The beneficial effects produced by the arrangement of the second terminals 132a are the same as those of the arrangement of the first terminals 132a, which will not be described in detail here.

[0057] Specifically, there are a plurality of first terminals 131a, the first electric slip ring 131 has a first center, the first terminals 131a are arranged around the first center, the distances between the first terminals 131a and the first center are unequal, and an angle exists between the first terminals 131a and the line connecting the first center; there are a plurality of second terminals 132a, the second electric slip ring 132 has a second center, the second terminals 132a are arranged around the second center, the distances between the second terminals 132a and the second center are unequal, and an angle exists between the second terminals 132a and the line connecting the second center.

[0058] Specifically, as attached Fig. 9 As shown, the first electric slip ring 131 is provided with a plurality of first terminals 131a, and the first terminals 131a are arranged around the first center of the first electric slip ring 131, and the distances between the first terminals 131a and the first center of the circle are not equal to each other, so that the first terminals 131a can contact with different conductive rings 133a, and avoid the wires inside a section of the cable from contacting and conducting with each other. At the same time, there is an angle between the first terminals 131a and the line connecting the first center of the circle, which increases the distance between the first terminals 131a, prevents the first terminals 131a from contacting with each other, and avoids the wires inside a section of the cable from contacting and conducting with each other.

[0059] Preferably, the angle between the first terminal 131a and the line connecting the first center of the circle can be any angle, which is not limited here, and the angle is preferably 90°.

[0060] In addition, the second electric slip ring 132 is provided with a plurality of second terminals 132a, and the arrangement of the second terminals 132a is the same as that of the first terminals 131a. The beneficial effects produced by the arrangement of the second terminals 132a are the same as those of the arrangement of the first terminals 132a, which will not be described in detail here.

[0061] To supplement, the number of wires inside the first cable section is the same as the number of wires inside the second cable section. The wires inside the first cable section correspond to the wires inside the second cable section one by one, and are connected to each other through the conductive member 133.

[0062] For example, a common high-voltage cable is a three-core cable with three conductors inside, namely phase A, phase B and phase C. Then, when both the first and second cable sections are three-core cables, the phases A, B and C inside the first cable section need to correspond one by one with the phases A, B and C inside the second cable section, and be in contact and conductive.

[0063] For example, the first rolling shaft 110 is provided with a first threading groove 111, and the end of one section of the cable passes through the first threading groove 111, so that the one section of the cable is connected to the first electric slip ring 131; the second rolling shaft 120 is provided with a second threading groove 121, and the end of the second section of the cable passes through the second threading groove 121, so that the second section of the cable is connected to the second electric slip ring 132.

[0064] For example, see the attached Figure 1 and attached Figure 2 As shown, the first rolling shaft 110 is provided with a first threading groove 111, and the second rolling shaft 120 is provided with a second threading groove 121. The end of one section of the cable passes through the first threading groove 111 and is connected to the first electric slip ring 131, so that the wires inside the one section of the cable are respectively connected to the first terminal 131a, thereby preventing the position interference between the one section of the cable and the first rolling shaft 110 during the process of winding or releasing the cable retractable device 100, ensuring the stability of the first rolling shaft 110 during rotation, and making the structure of the cable retractable device 100 more reasonable.

[0065] The end of the second section of the cable passes through the second threading groove 121 and is connected to the second electric slip ring 132, so that the wires inside the second section of the cable are respectively connected to the second terminal 132a. The beneficial effects of the second threading groove 121 are the same as those of the first threading groove 111, which will not be repeated here.

[0066] Supplementary instructions, as attached Figure 1 As shown, the first rolling shaft 110 is also provided with a first wire-releasing groove 112, and the other end of one section of the cable passes through the first wire-releasing groove 112. During the wire-releasing process, the one section of the cable is prevented from being dragged on the ground, and the one section of the cable is also prevented from being scratched by hard objects, making the structure of the cable retracting and releasing device 100 more reasonable. The second rolling shaft 120 is also provided with a second wire-releasing groove, and the beneficial effects of the second wire-releasing groove are the same as those of the first wire-releasing groove 112, which will not be repeated here.

[0067] Specifically, the central axis of the first rolling shaft 110 , the central axis of the second rolling shaft 120 , and the central axis of the conducting device 130 coincide with each other.

[0068] Specifically, as attached Figure 5As shown, the central axis of the first rolling shaft 110, the central axis of the second rolling shaft 120 and the central axis of the conducting device 130 coincide with each other, so that the wire winding and releasing device 100 is prevented from shaking during the process of winding or releasing the wire, thereby preventing the wire winding and releasing device 100 from making abnormal noises, making the process of winding or releasing the wire more stable.

[0069] As attached Figure 5 As shown, the conductive member 133 is fixed on the bracket 140 so that the central axis of the conductive member 133 coincides with the central axis of the first rolling shaft 110, thereby preventing the first terminal 131a and the second terminal 132a from being broken due to uneven force when they contact the insulating ring 133b during rotation, thereby improving the stability of the wire retracting and releasing device 100.

[0070] It is additionally explained that, during the process of assembling the wire retracting and releasing device 100 , it is convenient for assemblers to determine the installation positions of the first rolling shaft 110 , the second rolling shaft 120 and the conducting device 130 , thereby reducing the difficulty of assembly.

[0071] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A cable retracting and releasing device, characterized in that: The cable retracting and unreeling device comprises: a first rolling shaft, on which a section of cable is wound; a second rolling shaft, on which two sections of cable are wound; A conducting device is provided between the first rolling shaft and the second rolling shaft, and the first cable section and the second cable section are conducted through the conducting device.

2. The cable retracting and unreeling device according to claim 1, characterized in that: The conducting device comprises: A first electric slip ring, which is fixed on a side of the first rolling shaft close to the conducting device and is connected to a section of the cable; A second electric slip ring, which is fixed on a side of the second rolling shaft close to the conducting device and is connected to the second section of the cable; A conductive member is provided between the first electric slip ring and the second electric slip ring, and one side of the conductive member is in contact with the first electric slip ring, and the other side of the conductive member is in contact with the second electric slip ring.

3. The cable retracting and releasing device according to claim 2, characterized in that: The conductive member comprises: Conductive rings, the conductive rings are arranged on both sides of the conductive member; The first electric slip ring is provided with a first terminal, the second electric slip ring is provided with a second terminal, and the first terminal is connected to the second terminal through the conductive ring.

4. The cable retracting and releasing device according to claim 3, characterized in that: The conductive member further comprises: An insulating ring is arranged between the conductive rings.

5. The cable retracting and unreeling device according to claim 4, characterized in that: The height of the insulating ring is greater than the height of the conductive ring.

6. The cable retracting and releasing device according to claim 3, characterized in that: A first elastic member is provided between the first electric slip ring and the first terminal, and a second elastic member is provided between the second electric slip ring and the second terminal.

7. The cable retracting and releasing device according to claim 6, characterized in that: There are a plurality of first binding posts, and the first binding posts are arranged in sequence along the extension direction of the diameter of the first electric slip ring, and there are gaps between the first binding posts; There are a plurality of second binding posts, which are arranged in sequence along the extension direction of the diameter of the second electric slip ring, and there are gaps between the second binding posts.

8. The cable retracting and releasing device according to claim 6, characterized in that: There are a plurality of first terminals, the first electric slip ring has a first center, the first terminals are arranged around the first center, the distances between the first terminals and the first center are not equal, and there is an angle between the lines connecting the first terminals and the first center; There are multiple second terminals, the second electric slip ring has a second center, the second terminals are arranged around the second center, the distances between the second terminals and the second center are not equal, and there is an angle between the second terminals and the line connecting the second center.

9. The cable retracting and unreeling device according to any one of claims 1 to 8, characterized in that: The first rolling shaft is provided with a first threading groove, and the end of the cable segment passes through the first threading groove, so that the cable segment is connected to the first electric slip ring; The second rolling shaft is provided with a second threading groove, and the end of the second cable section passes through the second threading groove, so that the second cable section is connected to the second electric slip ring.

10. The cable retracting and releasing device according to claim 2, characterized in that: The central axis of the first rolling shaft, the central axis of the second rolling shaft, and the central axis of the conducting device coincide with each other.

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